Top Definition
To be stopped by a moderator or someone else who created something (such as a game).

To make a game mod(ification)-proof.
Guy 1: Dude I used to mod all the time in Halo 3.
Guy 2: They insta-modblocked Halo Reach.
Guy 1: Wtf, isn't that impossible?
Guy 2: No, it's Microsoft.
by The Mod that Could September 27, 2010

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